Spinning-frame.



F. CASABLANCAS.

SPINNING FRAME.

APPLICATIQN FILED JULY n. 1917.

Patented Jan. 22, 1918.

2 SHEETS-SHEET F. CASABLANCAS.

SPINNING FRAME.

APPLICATION FILED JULY I7. I91].

Patented Jan. 22, 1918.

2 SHEETSSHEET 2.

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SPINNING-FEE.

Application filed July 17, 1917. Serial No. 181,149.

Be it known that-I, FERNANDO. Casnntan- 'cAs subject of the King ofSpa1n, res1d1ng at Eiabadell, Barcelona, Spain have invented certain newand useful Improvements in Spinring-Frames, of which the following is aspecification. I

This invention refers to. the spinning frames and similar machines inwhich, in

orderto convey the roving to the drawing cylinders two endless beltsguided by suitable guiding rollers are employed, which belts grip theroving exerting pressure upon it and convey it to a point near to thedrawing cylinders. My invention specially refers to the spinning framesof this .kind that are described in my former Patent lflo. 1,147,676 andin my patent application Serial N 0. 11,303 filed the 1st of March 1915.

The machines of my former patents and in general all the spinning framesin which two endless belts are employed to grip the roving and convey itto the drawing cylinders, although they produce a work of excellentquality, they present the disadvantage that the lower beltisinaccessible and in the event that it becomes broken or spoilt i; isvery difficult to repair it, as it is necessary to stop the machine andto withdraw the upper belt and the guiding rollers of same, in order toattain the lower belt, and if this belt has to be withdrawn it isnecessary to disassemble the driving cylinders taking a great amount oftime and work.

My invention has for object to obtain a.

spinning frame similar-to the machines described in my cited formerpatents in which all these troubles due to the use of the lower belt areprevented thus obtaining a machine of simple construction and steadyworking.

ing passes between the plate vand the belt and is dragged along by themotion of the belt, being compelled to advance slowly to-. ward thedrawing-cylinders following the movement of the belt. At the same timeowin to the pressure that the belt exerts on the p ate, the requiredretention of the roving is obtained to prevent that the fibers that areseized by the drawing cylinders drag along the other fibers of theroving that have not yet been seized by the drawing cylinders.

With my invention I prevent completely the inconveniences of the machinealready known, as the plate is fixed on the machine and therefore cannotbe deranged and if the belt is deranged, as it is placed over the plate,it is very accessible and therefore easy to repair or substitute withoutinterrupting the workin of the spinning frame.

In describing my invention in detail reference' will be had to theaccompanying drawings wherein like symbols refer to like orcorresponding parts throughout the several views and in which:

Figure 1 is a cross section of the drawing mechanism of a spinning frameaccording with my invention, Fig. 2 is a plan view of this mechanism andFig. 3 is a detail. In Fig. 2 the standards and the supports of thelower cylinders have been omitted for greater clearness, leaving merelythe arms that support the upper cylinders. Moreover in the right handpart of the Fig. 2 only 3, a pair of intermediate cylinders 86, 87

and a pair of feeding cylinders 88, 89, as in the drawing mechanisms ofthe usual spinning frames. The standards 72 that carry the wholemechanism, as well as the support 82 that carries the lower cylindersand the arms 80 that carry the journal bearings of the upper cylindersare of a similar construction as the ones used commonly in the drawingmechanisms of the spinning frames or other textile machines.

This invention consists of disposing between the cylinder 87 and thelower drawing cylinder 3, a plate 9 fixed on the supports 82 with screws10, which plate has its upper face corresponding approximately to thetangent plane of the cylinders 3, 86, 87; said upper face of this plate9 may be flat or slightly convex. Over this plate 9 rests an endlessbelt 1 disposed embracing the cylinder 86 and a roller or rod 5 of smalldiameter located very near to the drawing cylinders 3. This rod 5 issupported by means of resilient supports 29 which tend to press the rod5 and therefore the belt 1 against the plate t). .The strength of thesesupports 29 may be adjusted by means of respectlve screws 30 screwed tothe plate 9 and WhlCh serye at the same time to fix said supports 29 tothe suitable position. The belt 1.

is mounted tight on the cylinders 5 and 86 in order that through thetension of the belt and the pressure that the cylinders exert the beltbears on the plate 9 with suflicient force to retain the roving.

belt in the art that bears against the plate.

exertsa so ter pressure on the roving, sulficient to retain the rovlngand oblige 11; to

. advance following the moyement of the belt but at the same timeallowing the fibers o the roving that are caught by the drawingcylinders to slide between the other fibers of the roving and betweenthe belt and the plate following the speed of the drawing cylinders andwithout dragging along with them the other fibers that have not yet beencaught by said drawing cylinders. I

If for any reason during the working of the machine one of the belts isbroken or split the corresponding cylinder 86 can be readily lifted, androller 5 and belt 1 be withdrawn wlthout interrupting the working of themachine. Then the belt may be repaired or substituted by a new one, therollers replaced in the machine and the spindle .corresponding to thedamaged belt may be started again.

I have shown and described a preferred and satisfactoryconstruction butdesire it to be understood that slight changes may be resorted towithout departing from the spirit and scope of my invention, providedsuch caught by changes fall within the scope of the appended claims.

I claim:

1. Ina spinning frame, an endless belt to convey the roving to thedrawing cylinders, a fixed plateover which said belt slides, said beltbeing tight and pressed against the plate, the roving passing betweensaid belt and plate so that it is dragged along by the movement of thebelt and conveyed to the,

drawing cylinders.

2. In a splnnmg frame, a fixed, plate over which slides the roving, anendless belt that slides over said plate and drags along in its motionthe roving, a pair of driving c linders that grip said belt and rovingand rive them, and a guiding rod for the front curve or loop of thebelt; being said belt tight between said guiding rod and the upperdriving cylinder; said guiding rod being mount-' ed so as to press thebelt against the fixed plate, in order that the 'motion of the beltdrags alongthe roving conveying it to the drawing cylinderstand thepressure of the belt on the roving retains it sufliciently to preventthat the fibers caught by the drawing cylinders may drag along with themthe other fibers that have not yet been caught by said drawingcylinders.

3. In a spinning frame, the combination of a fixed plate over whichslides the roving,

an endless belt that slides over saidplate and drags along the roving.in its motion la. e t

rotary driving cylinder that drives said b to conveythe roving to thedrawing cylinders, a guiding. rod located very near to the drawingcylinders that guides the front curve or loop of the belt, said beltbeing suitably tight between said driving cylinder and said guidin rod;a spring acting on said iding ro the p ate in order that the belt dragsalong theroving in its motion conveying it to the drawing cylinders, andthepressure of the belt over the roving produces over it a suflicientretention to prevent that the fibers the drawing cylinders can dragalong with them the other fibers that have not yet been caught by thedrawing cylinders.

to press the belt against FERNANDO CASA'BLANCAS.

